To Object  Often Words Express Talk A  Order

a [no object] : to say words in order to express your thoughts, feelings, opinions, etc., to someone : to talk to someone
— often + to
— often + with in U.S. English
— often used at the beginning of telephone conversations

b [no object] : to talk about a particular subject or person — often + about or of

c [no object] : to say words to express yourself in a particular way

d [+ object] : to say (something) to someone